China coal project to recycle water using high efficiency reverse osmosis

China’s biggest coal producer has awarded Aquatech a contract to provide a water treatment facility that includes a Zero Liquid Discharge (ZLD) plant for a coal to liquid fuels conversion project...

Energy Coal Resources

Energy Coal Resources

China’s biggest coal producer has awarded Aquatech a contract to provide a water treatment facility that includes a Zero Liquid Discharge (ZLD) plant for a coal to liquid fuels conversion project.

The project is being developed by Shenhua Ningxia Coal Industry Co., a division of Shenhua Group, China's biggest coal producer.

The ZLD plant will recycle over 55,000 m3/day of wastewater generated by the 4 million tons per year plant and eliminate all wastewater discharge.

The recycled water will treated to a high purity level and reused in the process facility. Shenhua selected Aquatech to design, engineer, and supply the integrated water facility, and to supervise installation and commissioning.

Aquatech will supply a system will use the AquaEZ™ technology consisting of conventional UFRO, HERO™ (High Efficiency Reverse Osmosis), Unseeded Falling Film evaporators, followed by crystallizers at the back end to achieve compete zero liquid discharge.

Aquatech will also supply the post-treatment of the recycled water with an ion exchange process to give high purity water to be used back in the process.

The project will ensure that Shenhua Ningxia complies with statutory regulations and minimises its overall water footprint.

“This project strengthens our position as a leader in ZLD, especially in this part of the world," said Tom Tseng, general manager of Aquatech China.

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